Linux: screen command

Initiate a screen session and disconnect immediately

[root@nodea ~]# screen -S 'jhtest' -d -m
[root@nodea ~]# screen -list
There is a screen on:
	2653.jhtest	(Detached)

Parse a command to a running screen session

• Initiate and disconnect from your named screen session

screen -r "jhtest" -X stuff $'cd /benchmark\n'

• -r = reconnect screen session
• "jhtest" = name of the screen session
• -X = send commands to a running screen session
• stuff = stuff command lets you send keystrokes
• $ = $ before the command is to make the shell parse the \n inside the quotes and the newline is required to execute the command (like when you press enter)
• 'cd /tmp\n' = the command to run followed by /n keystroke